SGP.32 for IoT devices
What SGP.32 changes for IoT fleets, which devices qualify, and why SGP.02 devices cannot be upgraded over the air.
What's inside
- What SGP.32 changes: remote profile management for unattended fleets, with the eIM and SM-DP+ on the management side.
- Which fleets qualify, the factory flow, and why SGP.02 hardware cannot become SGP.32 over the air.
- Indicative device data and country notes; every figure is a typical value, not a measurement.
8 pages
The hardware cycle decides
SGP.02 devices cannot become SGP.32 over the air. The hardware cycle decides when a fleet can move, not a software update.
SGP.32 moves profile management into the network: the eIM selects a profile, the SM-DP+ prepares it, and the eUICC installs it with no person at the device.
The four roles
| Item | Device | eUICC | eIM | SM-DP+ |
|---|---|---|---|---|
| What it is | The unit in the field | The secure chip that stores profiles | The fleet manager that selects a profile | The server that prepares a profile |
| Who runs it | You | The eUICC manufacturer; integrated by the device maker | Us, a local operator or you, depending on the project | The connectivity provider |
| What it does | Wakes, reports, sleeps | Holds several profiles and enables one | Chooses a profile per policy | Downloads and installs the profile over the air |
Names follow GSMA SGP.32 v1.2.
Profile lifecycle: SGP.22 and SGP.32
SGP.22 (consumer)
- 1 Order
- 2 Scan the QR code
- 3 Profile downloads Current step
- 4 Enable on the device
SGP.32 (IoT)
- 1 Order
- 2 eIM selects a profile
- 3 Profile downloads Current step
- 4 No person at the device
Text description
The SGP.22 track needs a person to scan or tap. The SGP.32 track lets the eIM select a profile and the device install it with no person present.
The factory flow
-
Factory
One SIM or eUICC goes into the unit: MFF2 with multi-IMSI, or SGP.32.
-
Landing
Switch to a local profile where the device stays long term.
-
Field
The device SIM stays data-only: no voice, SMS or VoIP capability.
-
Alerts
Alarms and one-time passwords travel over A2P SMS beside the data contract.
Which fleets qualify
Where this fits
The SGP.22 vs SGP.32 explainer compares the generations; the eSIM explainer covers the hardware; multi-IMSI vs eUICC covers the identity model.
Adjacent to what we offer
We explain this here because it affects how you use our service.
Who it's for
This site serves businesses
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